It has improved the AF accuracy when the lens is attached with the SIGMA MOUNT CONVERTER MC-11.
* It is necessary to use the SIGMA USB DOCK for Canon ver.1.02 or later to update the firmware.
*For customers who own SIGMA MOUNT CONVERTER MC-11 EF-E, it is necessary to update this to the latest firmware ver. 1.05.

It has reduced the operating sound of the lens diaphragm blades when attached with the SIGMA MOUNT CONVERTER MC-11 EF-E and used for video shooting.

It has improved the AF accuracy when the lens is used for video shooting as well as with Live View mode of EOS DIGITAL SLR cameras.*1

It has reduced the operating sound of the lens diaphragm blades when the lens is used for video shooting on EOS DIGITAL SLR cameras. *1

It has become compatible with the Canon Digital Cinema Camera EOS C300 Mark II.

*1 The degree of improvement may differ depending on the camera used.

Before updating the lens firmware, please ensure SIGMA Optimization Pro has been updated to ver. 1.4.1 or later for Windows, and ver. 1.4.0 or later for Macintosh from the following download page.